back of something

(in) back of (something)

Behind something. There was some more honey in the cabinet—I found it in back of all the cereal boxes.
See also: back, of

(in) back of something

(American English, informal) behind something: There’s a large garden in back of the house.
See also: back, of, something
References in classic literature ?
Kadlu was an Inuit,--what you call an Esquimau,--and his tribe, some thirty persons all told, belonged to the Tununirmiut--"the country lying at the back of something." In the maps that desolate coast is written Navy Board Inlet, but the Inuit name is best, because the country lies at the very back of everything in the world.
"I've never gone into a Ryder Cup with this much excitement coming off the back of something like this.
There's been a massive amount of frustration because I was coming off the back of something so incredible in 2008 and I wanted to build on it.
"It is hard to come off the back of something so big and exciting, but I will have to focus on Sheffield and what lies ahead."
Putting young criminals on the back of something with ten times their strength, a mind of its own, the ability to gallop at 50mph (no gears or safety belt) and the capability of administering a good unwarranted kicking is a brilliant idea.